Fallout 1 is linear but still has RPG elements, just like New Vegas and Skyrim. Except those two games are not true RPGs, but they still have RPG elements. They are more along the lines of an open world sandbox game with RPG elements thrown in.
Maybe I'm biased because of my past tabletop playing experience, and I understand what you mean that there are many stories to live, see and hear within New Vegas. My criticism is the some of the limitations.
For example me and my friends have tabletop RPed in a post-nuclear setting, we were a band of people contracted to investigate an old military facility. But that is it, the only thing the game dictated was that we had been contracted to do something. Our pasts, our characters, our future was left undecided. I would be more satisfied if you could 'fail' the Main quest in New Vegas and watch the rival faction win.
I can agree with you here, and this will settle some of my criticism
Did I ever say Skyrim was great? If you took the time to read my previous comments I criticize it for the same reasons I criticized New Vegas. Even my comment
"At least Skyrim allowed any back story prior to the events"
That comment is critical of Skyrim, "At least SKYRIM" I'm saying at least a game which falls short of New Vegas did something better that it.